/* Basic, clean styling for the app */

/* Light/Dark theme variables */
:root {
  /* Light (default) */
  --bg: #f6f7fb;
  --panel: #ffffff;
  --muted: #4b5563;
  --text: #0f172a;
  --accent: #16a34a;
  --accent-2: #2563eb;
  --danger: #b91c1c;
  --border: #e5e7eb;
}

[data-theme="dark"] {
  --bg: #0f172a;
  --panel: #111827;
  --muted: #94a3b8;
  --text: #e5e7eb;
  --accent: #22c55e;
  --accent-2: #3b82f6;
  --danger: #ef4444;
  --border: #1f2937;
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, "Helvetica Neue", Arial, "Apple Color Emoji", "Segoe UI Emoji";
  color: var(--text);
  background: var(--bg);
}

.site-header {
  padding: 24px 16px;
  text-align: center;
}

.site-header h1 {
  margin: 0 0 8px;
  font-weight: 650;
}

.site-header .subtitle {
  margin: 0;
  color: var(--muted);
}

/* Header layout: center heading, button aligned to container right */
.header-bar {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
}

.header-bar h1 {
  grid-column: 2;
  margin: 0;
}

.header-bar .theme-area {
  grid-column: 3;
  justify-self: end;
}

.container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 16px 24px;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 16px;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.08);
}

.panel h2 {
  margin: 0 0 12px;
  font-size: 18px;
}

.field-row {
  display: grid;
  grid-template-columns: 250px 1fr;
  gap: 12px;
  align-items: center;
  margin-bottom: 12px;
}

.field-row label {
  color: var(--muted);
}

/* Field rows that include an inline message (e.g., eGP) */
.field-row.with-msg {
  grid-template-columns: 250px 1fr auto;
}

.inline-msg {
  color: var(--muted);
  white-space: nowrap;
}

input[type="number"],
input[type="text"] {
  background: #fff;
  border: 1px solid var(--border);
  color: var(--text);
  padding: 10px 12px;
  border-radius: 8px;
  outline: none;
  min-width: 100px;
}

input[type="number"]:focus,
input[type="text"]:focus {
  border-color: var(--accent-2);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

.rates-container {
  display: grid;
  gap: 8px;
}

.rate-row {
  display: grid;
  grid-template-columns: auto 1fr auto auto;
  gap: 8px;
  align-items: center;
}

.rate-row .rate-label {
  color: var(--muted);
  white-space: nowrap;
}

.rate-row .rate-msg {
  color: var(--muted);
  white-space: nowrap;
  text-align: right;
}
.rate-row .rate-msg.is-error {
  color: var(--danger);
}

.rate-row .remove-btn {
  background: transparent;
  color: var(--danger);
  border: 1px solid var(--danger);
  padding: 8px 10px;
  border-radius: 8px;
  cursor: pointer;
}

.actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.actions .primary {
  background: var(--accent);
  color: #fff;
  border: 1px solid #16a34a;
}

.actions button,
.button {
  background: #fff;
  color: var(--text);
  border: 1px solid var(--border);
  padding: 10px 12px;
  border-radius: 8px;
  cursor: pointer;
  text-decoration: none;
}

.actions button:hover,
.button:hover {
  filter: brightness(1.2);
}

.hint {
  color: var(--muted);
  margin: 8px 0 0;
}

/* Chart tooltip */
.chart-tooltip {
  position: fixed;
  z-index: 1000;
  pointer-events: none;
  background: rgba(17, 24, 39, 0.95);
  color: #fff;
  border-radius: 8px;
  padding: 8px 10px;
  font: 12px system-ui, sans-serif;
  box-shadow: 0 8px 20px rgba(0,0,0,0.3);
  white-space: nowrap;
  transform: none; /* positioned by JS relative to cursor */
  opacity: 0;
  transition: opacity 120ms ease;
}

.chart-tooltip.is-visible {
  opacity: 1;
}

/* Hide hint text per request */
.hint {
  display: none !important;
}

.result-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.metric {
  font-size: 18px;
  margin-bottom: 6px;
}

.metric.small {
  font-size: 14px;
  color: var(--muted);
}

.metric-label {
  color: var(--muted);
  margin-right: 8px;
}

.metric-value {
  font-weight: 650;
  color: var(--text);
}

/* Tenderers' output grid */
.tenders-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px 24px; /* increased spacing between cells */
  margin-top: 10px;
}
.tenders-grid__cell {
  font-size: 14px;
  line-height: 1.5;
  padding: 2px 0;
}
.tenders-grid__status {
  font-style: italic;
  color: var(--accent);
  font-weight: 700;
  margin-left: 6px;
}

/* Make the 'Tenderers\' input' heading match metric size */
.tenders-section .metric-label {
  font-size: 18px;
}

.tenders-grid__cont {
  font-weight: 700;
}

.tenders-grid__val.is-error {
  color: var(--danger);
}

.chart-wrap {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 8px;
  margin-top: 10px;
  overflow: auto;
}

details.note {
  margin-top: 10px;
  color: var(--muted);
}

.site-footer {
  text-align: center;
  padding: 24px 16px;
  color: var(--muted);
}

.header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.theme-area button,
.export button,
.icon-btn,
.export button {
  background: transparent;
  border: 1px solid var(--border);
  padding: 8px 12px;
  border-radius: 8px;
  color: var(--text);
  cursor: pointer;
  height: 48px;
  width: auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.theme-area .icon {
  width: 22px;
  height: 22px;
  fill: currentColor;
}

.theme-area .icon-moon {
  display: none;
}

[data-theme="dark"] .theme-area .icon-sun {
  display: none;
}

[data-theme="dark"] .theme-area .icon-moon {
  display: inline;
}

/* Dark-specific surfaces */
[data-theme="dark"] input[type="number"],
[data-theme="dark"] input[type="text"],
[data-theme="dark"] .actions button,
[data-theme="dark"] .button,
[data-theme="dark"] .chart-wrap {
  background: #0b1023;
}

@media (max-width: 640px) {
  .field-row {
    grid-template-columns: 1fr;
  }

  .field-row.with-msg {
    grid-template-columns: repeat(2, 1fr);
  }

  .field-row.with-msg label {
    grid-column: 1 / -1;
  }


  .rate-row {
    grid-template-columns: 50px 30px 1fr 70px;
  }
}

/* Info button alignment in Inputs panel */
.panel .header-row .icon-btn {
  height: 40px;
  padding: 6px 10px;
}

/* Modal (info) */
.modal {
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.modal.open { display: flex; }

.modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(1px);
}

.modal__content {
  position: relative;
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 12px;
  width: min(92vw, 560px);
  padding: 16px 16px 14px;
  box-shadow: 0 12px 32px rgba(0,0,0,0.25);
}

.modal__title {
  margin: 0 0 8px;
  font-size: 18px;
}

.modal__body p {
  margin: 8px 0;
  line-height: 1.55;
  color: var(--text);
}

.modal__body strong {
  font-weight: 700;
}

.modal__body em {
  color: var(--accent-2);
  font-style: normal;
  font-weight: 600;
}

.modal__close {
  position: absolute;
  top: 10px;
  right: 10px;
  height: 36px;
  padding: 6px 8px;
}